Improvement in machines for sharpening calks



GEORGE w. LANE.'

Improvement in Machines for Sharpening Calks. N0.

Patented Ma y 23,1 87i.

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UNITED STATES PATENT FFICE.

GEORGE W. LANE, OF CHIOHESTER, NEW HAMPSHIRE.

IMPROVEMENT IN MACHINES FOR SHARPENING CALKS.

Specification forming part of Letters Patent No. 115,068, dated May 23, 1871.

description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.

Figure 1 represents a plan or top view of my improved calk-sharpening apparatus. Fig. 2 is a side elevation of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to an improvement in that class of machines which are employed for grinding or sharpening the calks of horseshoes when secured to the animals feet. The invention consists in the construction and arrangement of certain parts, which adapt the machine for use upon the shoes of animals which are of ditferent heights. These parts are hereinafter described in a general way, in

connection with others necessary to form a complete machine, and are specifically claimed.

A in the drawing represents the case of the apparatus, made of suitable form and size, and sufiiciently strong to sustain the gearing and other mechanism connected therewith. B is a'vertical post carrying a yoke, (J, at its upper end. The post is titted into a socket of the base A and vertically adjustable therein. t can be locked at suitable height by a setscrew, (1, or its equivalent. 1n the yoke U are the bearings of an upright spindle, l), which, at its upper end, above the yoke, carries a pinion, b. This pinion meshes into the teeth of a. gear-wheel, d, which is hung to an upper extension, 6, of the yoke. The wheel I) has a crank-handle, f, by means of which it can be turned to revolve the spindle D. Upon the spindle D is mounted a pulley, g. E is a horizontal'frame forked at both ends. One end is titted to the yoke swinging on the spindle l). The other end carries a short upright spindle, h, which has two pulleys, i and j. A cord, K, connects the pulleys g aml 2'. by the spindle h is also pivoted to the frame In an-' other forked frame, F, which has acylimlrical outer end. To the. outer end of the frame F is swiveled a yoke, G, which carries a spindle, Z. An emery-wheel, m, and a pulley, n, are mounted upon the spindle l, and a cord, 0, connects the pulleys j and n. The swiveli'rame E can be turned to set the emery-wheel in any suitable position, and can be fastened by a pin or set-screw, p.

The belts or cords and pulleys serve to transmit the rotary motion from the gearwheel (I to the emery-wheel, and the jointed frame E F permits the same to be moved horizontally in suitable manner. The machine is set up near the horse whose calks are to be sharpened. One person guides the emery wheel along the surface of the ealk, while another person or suitable power is employed to rotate the main gear-wheel.

The device can also he used for sharpening saws, and by putting other instruments in the place of the emery-wheel it can be used for other purposes.

I am aware of the patent of Geo. Oowing, issued May 19, 186:5, and desire to be understood as claiming nothingtherein shown; but

Having thus described my invention,l claim as new and desire to secure by Letters Patent The swiveled yoke G, carrying the emerywheel m and the vertically-adjustable post B, combined with the frames F, E, U, and A, and gearing b and d, as herein shown and described, for the purpose specified.

GEORGE W. LANE.

Witnesses:

S. G. LANE, U. W. MOORE. 

